On Feb 5, 2008 11:13 AM, Roman Kononov kononov@dls.net wrote:
On 2008-02-05 11:45, yhlu wrote:
On Feb 5, 2008 7:48 AM, Roman Kononov kononov@dls.net wrote:
On 2008-02-05 00:48 yhlu said the following:
On Feb 4, 2008 9:29 PM, Roman Kononov kononov@dls.net wrote:
I have difficulty cold-resetting Tyan s2912, which has mcp55.
The sequence outb(0x2,0xcf9); outb(0x6,0xcf9); is a warm reset. It does not reset the HyperTransport link frequency and width.
how do you know?
do you have other co-processor or htx installed?
I have a co-processor.
The sequence I hope to have:
- Power up. Power-on reset. The co-processor takes long time to become
alive (~500s). By this time the CPU thinks that the HT link is dead. 2) CPU issues another reset. 3) The CPU re-initializes the HT link and the connection is happy.
With the above sequence, the step 3) is a warm reset, and the CPU does not attempt to re-initialize the link.
that is co-processor problem.
Please talk the co-processor vendor about that. they have solution for you problem. otherwise return that to get one from another vendor.
Thanks for the recommendation. Who makes socket F co-processors?
I don't think there are hundreds of vendors for that.
DRC computer?
Can you tell me how to make the cold reset please?
you don't need cold reset.
at that case even cold reset doesn't work.
YH